di·ach·ro·ny 
(dī-ăkrə-nē)
(dī-ăkrə-nē)n.
1. Diachronic arrangement or analysis.
2. Change occurring over time.
[DIACHRON(IC) + -Y2.]
- rheum
- rheumatic
- rheumatic disease
- rheumatic fever
- rheumatic heart disease
- rheumatism
- rheumatoid
- rheumatoidal
- rheumatoid arthritis
- rheumatoid factor
- rheumatologist
- rheumatology
- rheumy
- Rh factor
- rhin-
- rhin-
- rhinal
- Rhine
- Rhineland
- rhinencephalic
- rhinencephalon
- rhinestone
- rhinestoned
- Rhine wine
- rhinitis